> ## Documentation Index
> Fetch the complete documentation index at: https://developers.thinkout.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> Read the bank connections, accounts and transactions of a ThinkOut workspace from your own tools.

The ThinkOut API opens the data behind a workspace to your own tools. Use it to pull actuals into a BI tool or reconcile against an ERP.

Version 1 covers reads: every endpoint is a `GET`, and every list that can grow pages the same way.

## Resources

<CardGroup cols={3}>
  <Card title="Banks" icon="link" href="/api-reference/banks/list-bank-connections">
    Bank connections, their status, and when each one last synced.
  </Card>

  <Card title="Accounts" icon="building-columns" href="/api-reference/accounts/list-accounts">
    Manual and bank-connected accounts with their current balance in the account currency.
  </Card>

  <Card title="Transactions" icon="arrow-right-arrow-left" href="/api-reference/transactions/list-transactions">
    Every booked and pending movement on every account, as the account recorded it.
  </Card>

  <Card title="Reports" icon="chart-column" href="/api-reference/reports/summarise-transactions">
    Inflows, outflows and balances per period, computed the way the cash flow screen computes them.
  </Card>

  <Card title="MCP server" icon="message" href="/guides/mcp">
    Ask about your workspace in plain language from Claude Code, Cursor, VS Code or Codex.
  </Card>
</CardGroup>

## Base URL

```text theme={"system"}
https://api.thinkout.io/v1
```

All requests must use HTTPS. Responses are JSON with `snake_case` keys.

## First request

<Steps>
  <Step title="Create an API key">
    In ThinkOut open **Settings** and create a key for the workspace you want to read. The key is shown once. See [Authentication](/guides/authentication).
  </Step>

  <Step title="List your accounts">
    ```bash theme={"system"}
    curl https://api.thinkout.io/v1/accounts \
      -H "Authorization: Bearer $THINKOUT_API_KEY"
    ```
  </Step>

  <Step title="Page through transactions">
    ```bash theme={"system"}
    curl "https://api.thinkout.io/v1/transactions?from=2026-01-01&to=2026-03-31&limit=100" \
      -H "Authorization: Bearer $THINKOUT_API_KEY"
    ```

    Follow `next_cursor` until `has_more` is `false`. See [Pagination](/guides/pagination).
  </Step>
</Steps>